CN103943012A

CN103943012A - Generator demonstrating model

Info

Publication number: CN103943012A
Application number: CN201410173716.1A
Authority: CN
Inventors: 李仁为; 井大喜; 翁成美; 宋伟强
Original assignee: Bengbu Changxin Kepu Product Engineering Research Center Co Ltd
Current assignee: Bengbu Changxin Kepu Product Engineering Research Center Co Ltd
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2014-07-23
Anticipated expiration: 2034-04-28
Also published as: CN103943012B

Abstract

The invention relates to a generator demonstrating model which comprises a display platform. A guide rod support is arranged on the display platform, a guide rod is arranged on the guide rod support, a support base is borne on the guide rod, the support base can move along the guide rod, a coil support is fixed on the support base, a closed coil is arranged in the coil support, a magnet rotating shaft penetrates the closed coil, one end of the magnet rotating shaft is hinged to a first magnet support, and the other end of the magnet rotating shaft is connected with a transmission speed-changing device. A first handle is arranged on the transmission speed-changing device, a magnet is arranged on the magnet rotating shaft, a rigid connecting rod is fixed on the support base, one end of the rigid connecting rod is fixed on the edge position of a disc, a second handle is arranged on the disc, two limiting columns are further fixed on the display platform, and a bulb is connected onto the display platform and electrically connected with the closed coil. The generator demonstrating model is simple in structure, can demonstrate the influence on induction current of a closed coil cutting magnetic induction line and the influence on induction current of a closed coil non-cutting magnetic induction line and has intuitive nature and interestingness.

Description

Generator demonstrating model

Technical field

The present invention relates to a kind of teaching mode, specifically a kind of generator demonstrating model that is used for demonstration generator principle.

Technical background

Generator is the equipment that mechanical energy is converted to electric energy, utilizes closing coil cutting magnetic induction line in magnetic field to produce faradic raw material and generates electricity.

Alternator, due to the ubiquity of its usable range, also becomes physics teaching in secondary school aspect key content.But the generator model generally using at present, can only be used for demonstrating closing coil cutting magnetic induction line to faradic impact, can not demonstrate closing coil not cutting magnetic induction line on faradic impact, student is hard to tell because magnet rotation produces induction current or because closing coil cutting magnetic induction line produces induction current.

Summary of the invention

The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of Generator demonstrating model is provided, and this model not only can be demonstrated rotating speed to faradic impact, and all right magnetic field demonstration intensity is on faradic impact.

For solving the problems of the technologies described above, the invention provides a kind of Generator demonstrating model, comprise display platform, on display platform, be fixed with guide bar receiver, on guide bar receiver, be fixed with guide rod, on guide rod, carry bracket base, bracket base can move along guide rod, on bracket base, be fixed with coil brace, in coil brace, there is closing coil, magnet rotating shaft is passed in closing coil, magnet rotating shaft one end is hinged in the first magnet holder, the other end is connected with the drive transmission device in the second magnet holder through the second magnet holder, the first magnet holder and the second support are fixed on show stand, on drive transmission device, be fixed with first handle, in magnet rotating shaft, be fixed with magnet, magnet is between the first magnet holder and the second magnet holder, in the first magnet holder, have long through-hole, on bracket base, be fixed with rigidity connecting rod, rigidity connecting rod one end is fixed on disk border place through long through-hole, disk is hinged on show stand, on disk, there is second handle, on show stand, be also fixed with two limited posts, the line of two limited posts is through the center of circle of disk and vertical with magnet rotating shaft, on show stand, be also connected with bulb, bulb is electrically connected with closing coil.

In the time that closing coil does not overlap with magnet axis, shake first handle, magnet rotation, but because closing coil does not have cutting magnetic induction line, so can not produce induction current, bulb is not luminous;

Rotate second handle, disk rotates, and contacts another limited post to second handle, now second handle Rotate 180 altogether ^oequally, disk also rotates, in rotation process, rigidity connecting rod promotes bracket base and moves to the direction near magnet, until then closing coil and magnet dead in line shake first handle, drive drive transmission device internal components to rotate, be with again moving magnet rotation, form rotating magnetic field, the wire cutting magnetic induction line in closing coil, according to theorem, in the conductor of cutting magnetic induction line, can produce induction current, so there is electric current to flow through in closing coil, in the bulb connecting with closing coil, also there is electric current to pass through, bulb is luminous.

Generator demonstrating model of the present invention is simple in structure, not only can demonstrate closing coil cutting magnetic induction line to faradic impact, can also demonstrate closing coil not cutting magnetic induction line on faradic impact, and can demonstrate the impact of rotating speed size on the induction current size producing by bulb brightness, have more intuitive and interest.

Brief description of the drawings

Fig. 1 is that magnet of the present invention is positioned at the structural representation of closing coil when outer.

Fig. 2 is that the A of Fig. 1 is to view.

Schematic diagram when Fig. 3 is closing coil of the present invention and magnet dead in line.

Embodiment

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

Generator demonstrating model, as depicted in figs. 1 and 2, comprise display platform 1, on display platform 1, be fixed with the first guide bar receiver 10a, the second guide bar receiver 10b, the 3rd guide bar receiver 10c and the 4th guide bar receiver 10d, described the first guide bar receiver 10a, the second guide bar receiver 10b, the 3rd guide bar receiver 10c and the 4th guide bar receiver 10d are quadrilateral and arrange, between the first guide bar receiver 10a and the 3rd guide bar receiver 10c, be fixed with the first guide rod 11a, between the second guide bar receiver 10b and the 4th guide bar receiver 10d, be fixed with the second guide rod 11b, the first guide rod 11a and the second guide rod 11b are parallel to each other, the first guide rod 11a and the common bearing support base 13 of the second guide rod 11b, bracket base 13 can move along the first guide rod 11a and the second guide rod 11b, on bracket base 13, be fixed with coil brace 6, described coil brace 6 is commercially available prod, in coil brace 6, there is closing coil 4, closing coil 4 two ends are connected with brush, magnet rotating shaft 5 is passed in closing coil 4, magnet rotating shaft 5 one end are hinged in the first magnet holder 14, magnet rotating shaft 5 other ends are connected with drive transmission device 9 through the second magnet holder 7, drive transmission device 9 is fixed in the second magnet holder 7, the first magnet holder 14 and the second support 7 are all fixed on show stand 1, on drive transmission device 9, be fixed with first handle 8, in magnet rotating shaft 5, be also fixed with magnet 12, magnet 12 is close the second magnet holder 7 places between the first magnet holder 14 and the second magnet holder 7, the first magnet holder 14 bottoms have long through-hole, bracket base 13 centre positions are fixed with rigidity connecting rod 16, rigidity connecting rod 16 one end are fixed on disk 17 edges through long through-hole, disk 17 is hinged on show stand 1, can on show stand 1, rotate, on disk 17, be fixed with second handle 18, respectively there is a limited post 15 disk 17 both sides, and the line of limited post 15 is through the center of circle of disk 17 and vertical with magnet rotating shaft 5, on show stand 1, go back fixed bin body 2, be fixed with three bulbs 3 on box body 2, bulb 3 is electrically connected with closing coil 4 by the wire in box body 2.

The above generator demonstrating model can be placed in translucent cover, has the hole that supplies first handle 8 and second handle 18 to stretch out on translucent cover.

In the time that closing coil does not overlap with magnet axis, as depicted in figs. 1 and 2, shake second handle 18, magnet 12 rotates, but because closing coil 4 does not have cutting magnetic induction line, so can not produce induction current, bulb 3 does not work;

When rotating second handle 18, disk 17 synchronously rotates, to second handle 18 another limited posts 15 of contact, now second handle 18 Rotate 180 altogether ^o, same, also Rotate 180 of disk 17 ^origidity connecting rod 16 promotes bracket base 13 and moves to the direction near magnet 12, until closing coil 4 and magnet 12 deads in line, as shown in Figure 3, then shake first handle 8, drive drive transmission device 9 internal components to rotate, be with again moving magnet 12 to rotate, form rotating magnetic field, the wire cutting magnetic induction line in closing coil 4, according to theorem, in the conductor of cutting magnetic induction line, can produce induction current, so have electric current to flow through in closing coil 4, in the bulb 3 being connected with closing coil 4, also there is electric current to pass through, bulb 3 is luminous.

The above is only the specific embodiment of the present invention; should be understood that; for the person of ordinary skill of the art; under the premise without departing from the principles of the invention; can also carry out some distortion or be equal to replacement technical scheme of the present invention; for example bulb is replaced with to reometer or light emitting diode etc., these also should be considered as belonging to protection scope of the present invention.

Claims

1. generator demonstrating model, comprise display platform, it is characterized in that: on display platform, be fixed with guide bar receiver, on guide bar receiver, be fixed with guide rod, on guide rod, carry bracket base, bracket base can move along guide rod, on bracket base, be fixed with coil brace, in coil brace, there is closing coil, magnet rotating shaft is passed in closing coil, magnet rotating shaft one end is hinged in the first magnet holder, the other end is connected with the drive transmission device in the second magnet holder through the second magnet holder, the first magnet holder and the second support are fixed on show stand, on drive transmission device, be fixed with first handle, in magnet rotating shaft, be fixed with magnet, magnet is between the first magnet holder and the second magnet holder, in the first magnet holder, have long through-hole, on bracket base, be fixed with rigidity connecting rod, rigidity connecting rod one end is fixed on disk border place through long through-hole, disk is hinged on show stand, on disk, there is second handle, on show stand, be also fixed with two limited posts, be also connected with bulb on show stand, bulb is electrically connected with closing coil.

2. generator demonstrating model as claimed in claim 1, is characterized in that: described guide bar receiver has four, and four guide bar receivers are quadrilateral to be arranged, guide rod has two, and two guide rods are parallel to each other.

3. generator demonstrating model as claimed in claim 2, is characterized in that: described bracket base is carried jointly by two guide rods.

4. generator demonstrating model as claimed in claim 1, is characterized in that: the line of described two limited posts is through the center of circle of disk and vertical with magnet rotating shaft.